探讨了微量的Ga替代Fe对Nd2Fe14B／Fe3B＋（少量）α-Fe永磁材料的晶体结构及磁性能的影响。结果表明：添加微量的Ga同样可减小晶粒尺寸；在Ga含量x＜1％（原子百分比）的范围，随着x的增加，Br和（BH）max随晶化时间变化的曲线由非线性向线性转化；矫顽力jHc下降到一个最小值后，又缓慢上升；当x＝0.2时，综合磁性能较好。
Effect of the Ga content substituting the Fe on the cryst alstructure and magnetic properties for the Nd2Fe14B/Fe3B＋(little) α-Fe permanent magnetic materials was discussed. The results show that the crystal size was markedly decresed by adding Ga. With the increase of x, the curves of the Br and the (BH)max change wi th annealing time from non-linearity to linearity in the Ga content range of x<1at%, the coercive force jHc decreases at first to a minimum and then increaes slowly. The best value of the magnetic properties is obtained while the x=0.2.
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